Transcend 256GB 2.5″ SATA III Internal Solid State Drive (SSD) for $129.99 shipped. Here is a screenshot for your reference. Alternatively, it is available at Newegg for $129.99 shipped. It features SATA III (6 Gb/s) Interface with 290 MB/s max write and 520 MB/s max read. Most places have it for about $149.